Re: [PATCH][ARM]Add earlyclobber modifier for neon_(vtrn, vuzp, vzip)_insn rtx pattern.

2015-10-07 Thread Ramana Radhakrishnan
On 06/10/15 18:27, Renlin Li wrote: > Hi all, > > Previously, the compiler will generate the following pattern, which will > cause an ICE during postreload pass. Meanwhile, the instruction itself > produces UNKNOWN result when the source and destination register are the same > according to AR

[PATCH][ARM]Add earlyclobber modifier for neon_(vtrn, vuzp, vzip)_insn rtx pattern.

2015-10-06 Thread Renlin Li
Hi all, Previously, the compiler will generate the following pattern, which will cause an ICE during postreload pass. Meanwhile, the instruction itself produces UNKNOWN result when the source and destination register are the same according to ARM instruction manual. The same rule applies to vt